CN106219624A - A kind of colloidal particle for chemical wastewater treatment - Google Patents

A kind of colloidal particle for chemical wastewater treatment Download PDF

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CN106219624A
CN106219624A CN201610700980.5A CN201610700980A CN106219624A CN 106219624 A CN106219624 A CN 106219624A CN 201610700980 A CN201610700980 A CN 201610700980A CN 106219624 A CN106219624 A CN 106219624A
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acid
particle
wastewater treatment
parts
chemical wastewater
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CN106219624B (en
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步召胜
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/286—Treatment of water, waste water, or sewage by sorption using natural organic sorbents or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
    • C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/16—Nitrogen compounds, e.g. ammonia
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/30—Organic compounds
    • C02F2101/34—Organic compounds containing oxygen
    • C02F2101/345—Phenols
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/05—Conductivity or salinity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/11—Turbidity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment
    • C02F2209/14—NH3-N
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00—Use of specific compounds during water treatment
    • C02F2305/10—Photocatalysts

Abstract

The invention discloses a kind of colloidal particle for chemical wastewater treatment, by weight, mainly consist of the following composition: mesopore activated carbon 10 18 parts, magnetic composite 26 parts, niobium oxide colloidal solid 15 parts, phosphate particle 2 10 parts, modified 5 16 parts of sawdust, polymer resin 3 15 parts, nano-titania photocatalyst 0.6 1.2 parts, nano silicon dioxide sol 10 22 parts.The colloidal particle of the present invention, when chemical wastewater treatment, without removing harmful substance by active adsorption, moreover it is possible to removed the material of difficult degradation, the high treating effect to wastewater from chemical industry by light-catalyzed reaction, and processing method is simple, low cost, clearance is high.

Description

A kind of colloidal particle for chemical wastewater treatment
Technical field
The present invention relates to chemical wastewater treatment technical field, be specifically related to a kind of colloid grain for chemical wastewater treatment Son.
Background technology
Wastewater from chemical industry refers to produced waste water in the whole production process of Chemical Manufacture, and wastewater from chemical industry is varied, many Number has severe toxicity, has certain summation in vivo, has obvious oxygen consumption character, easily make water quality deterioration in water body； Along with developing rapidly of chemical industry, produced by it, waste water quantity rapidly increases, and the pollution of waste water is the most extensively with serious. At present, environmental protection causes the attention of country, society and factory, but, aforementioned wastewater flow rate is very big, uses at existing wastewater from chemical industry Reason system, its disposal ability is not good enough, and its waste water treatment efficiency is relatively low, processing cost is higher, some small chemicals often occurs Factory selects the illegal bad phenomenon privately discharging undressed waste water, if these waste water discharge without process, enters Behind public water source, heterogeneity and the pollution in various degree of water body can be caused, cause to the health and safety of environment and the mankind Serious impact and harm.
Wastewater from chemical industry is as typical high concentration, high salinity, the sewage of complicated component of high conductivity, if using existing Device processes and will appear from the fouling of permeable membrane, dirty stifled, the frequent clean even shortcoming of membrane damage, and existing equipment cannot be to chemical industry Salinity in waste water reclaims, and relief liquor still exists a certain amount of high-concentration waste liquid.
The method processing at present wastewater from chemical industry has Physical, chemical method and bioanalysis, and Physical is by physical action, with Separate, reclaim the undissolved waste water treatment process in suspended state polluter in waste water, according to the difference of physical action, again may be used It is divided into gravitational separation process, centrifugal separation and sieving to retain method etc.；Compared with additive method, Physical has that equipment is simple, becomes The advantages such as this low, convenient management, effect stability, the thing such as floating thing, suspended solid, sand and the oils being mainly used in removing in waste water Matter, but long operational time, energy consumption is big.Chemical method be separated by chemical reaction and effect of mass transmitting, remove in waste water in dissolve, The polluter of colloidal state or be translated into the waste water treatment process of innocuous substance；The metal that can be used to remove in waste water from Sub, tiny colloidal organic matter, inorganic matter, nutrient for plants, oil emulsion, colourity, stink, acid, alkali etc., but investment cost is big, Cost is high.Bioanalysis is the metabolism by microorganism, make in waste water in solution, colloid and fine suspended state organic Contact scar material is converted into stable, harmless method of wastewater treatment.The essence of biological treatment process is that one is participated in by microorganism The Organic substance catabolic process carried out, the microorganism of decomposing organic matter is mainly antibacterial, other microorganism such as algae and protozoacide Also assist in this process, but effect is less.Therefore the treatment technology of wastewater from chemical industry is one of direction of research at present.
Summary of the invention
Present invention solves the technical problem that and be, the water quality for wastewater from chemical industry is complicated and pollutant load is high, uses physics Method, chemical method and Biochemical method operation are complicated, long operational time, and energy consumption is big, cost is high, the drawback that clearance is low, it is provided that A kind of colloidal particle for chemical wastewater treatment, processing method is simple, low cost, and clearance is high.
The technical scheme is that a kind of colloidal particle for chemical wastewater treatment, by weight, mainly by Following component forms: mesopore activated carbon 10-18 part, magnetic composite 2-6 part, niobium oxide colloidal solid 1-5 part, phosphate particle 2-10 part, modified sawdust 5-16 part, polymer resin 3-15 part, nano-titania photocatalyst 0.6-1.2 part, nano silicon Colloidal sol 10-22 part.
Further, in such scheme, the preparation method of described magnetic composite is: by na-pretreated zeolite powder and Fe3O4Powder By 1:(2-2.3) weight ratio be sufficiently mixed, obtain zeolite-Fe3O4Mixture；Chitosan is dissolved in mass concentration is In the phenoxyacetic acid solution of 35%, the mass ratio of the two is (1.2-1.5): 10, obtains chitosan-phenoxyacetic acid molten Liquid, adds the surfactant polyethylene pyrrole relative to described chitosan-phenoxyacetic acid solution weight percentage ratio 3-6% Pyrrolidone, adds described zeolite-Fe3O4Mixture, stirs；Make system be aged, after abandoning supernatant, be dried and grind, Obtain described magnetic composite.
Further, in such scheme, described niobium oxide colloidal solid is Nb2O5Colloidal solid, niobium oxide colloidal solid Mean diameter be preferably 1000nm or less, more preferably 2nm to 500nm, further preferred 10nm to 50nm.
Further, the preparation method of described niobium oxide colloidal solid is: by Nb2O5It is dissolved in by the mass ratio of 1:20 In the Fluohydric acid. of 30%, gained solution is joined in the ammonia relative to this 2-10 times of volume of solution, stir 3-10min, mistake Filter, and wash, obtain the slurry of niobium hydroxide, subsequently, successively add the oxalic acid solution of 4-6 times of weight, described oxalic acid solution Mass concentration is 35%, stirs and refluxes, and promotes the reaction of gained slurry, determines the end of reaction according to the color of described slurry Point, i.e. determine whether to have obtained homogeneous niobium oxide colloidal solid solution, if described slurry becomes blue, then can be true This slurry fixed is uniform state.
Further, in such scheme, described phosphate particle is by phosphorous acid, hypophosphorous acid, organic phosphoric acid, You Jiya In phosphoric acid, phosphoric acid, disodium hydrogen phosphate, sodium dihydrogen phosphate, polyphosphoric acid such as polyphosphoric acid, Metaphosphoric acid, pyrophosphoric acid and their salt Any one or two or more combination in any,
Further, in such scheme, the particle diameter of described phosphate particle is 20 μm.
Further, in such scheme, the preparation method of described modified sawdust is: sawdust powder is broken into 120-200 mesh Granule, adds the sodium silicate of 3-5%, the high-efficiency water-reducing agent of poly-carboxylic acid of 6-9% by weight percentage, sprays into 1-3% while stirring OPE, the dodecylbenzene sodium sulfonate solution of 1-2%, 5-12% acetic acid solution, dispersion grind 3-4 hour, add Heat is to 75-80 DEG C, and the mixture obtained after drying crosses the mesh sieve of 100-200 mesh, i.e. obtains described modified sawdust powder.
Further, in such scheme, described polymer resin is selected from vistanex, polyurethane resin, polyester tree Fat, olefin-propylene acid copolymer resin, polycarbonate resin, at least one in acrylic copolymer.
A kind of colloidal particle for chemical wastewater treatment, its preparation method is:
(1) mesopore activated carbon 10-18 part, magnetic composite 2-6 part, niobium oxide colloidal solid 1-5 are weighed by described proportioning Part, phosphate particle 2-10 part, modified sawdust 5-16 part, polymer resin 3-15 part, nano-titania photocatalyst 0.6-1.2 Part, nano silicon dioxide sol 10-22 part are standby；
(2) by described mesopore activated carbon, magnetic composite, niobium oxide colloidal solid, phosphate particle, modified sawdust, gather Resin, nano-titania photocatalyst mix, and under the uniform stirring that rotating speed is 100rpm, slowly spray into nano silicon Colloidal sol, then instill the rudimentary alkyd of 0.8-1.0 part, continuously stirred 1-24h under room temperature, then it is slowly dropped into TEOS/ ethanol solution (TEOS/ ethanol volume ratio is 1:1), under room temperature, continuously stirred 1-24h, obtains mixture；
(3) by described mixture ultrasonic disperse, cold drying, described colloidal particle is i.e. obtained.
Using method: the alternately ion prepared by the present invention is invested in chemical engineering sewage, after stir process a period of time, Precipitation filters, and i.e. can get the purification water that pollutant load is extremely low.
The invention has the beneficial effects as follows: the colloidal particle of the present invention, when chemical wastewater treatment, without can effectively inhale Attached removal harmful substance, moreover it is possible to by light-catalyzed reaction remove difficult degradation material, the high treating effect to wastewater from chemical industry, and Processing method is simple, low cost, and clearance is high.
Detailed description of the invention
Embodiment 1:
A kind of colloidal particle for chemical wastewater treatment, by weight, mainly consists of the following composition: mesopore is lived Property charcoal 10 parts, magnetic composite 2 parts, niobium oxide colloidal solid 1 part, phosphate particle 2 parts, modified 5 parts of sawdust, polymer resin 3 Part, nano-titania photocatalyst 0.6 part, nano silicon dioxide sol 10 parts.
Wherein, the preparation method of described magnetic composite is: by na-pretreated zeolite powder and Fe3O4The weight ratio that powder presses 1:2 is abundant Mixing, obtains zeolite-Fe3O4Mixture；Chitosan is dissolved in the phenoxyacetic acid solution that mass concentration is 35%, two The mass ratio of person is 1.2:10, obtains chitosan-phenoxyacetic acid solution, adds relative to described chitosan-benzene oxygen The surfactant polyvinylpyrrolidone of guanidine-acetic acid solution weight percentage ratio 3%, adds described zeolite-Fe3O4Mixture, Stir；Make system be aged, after abandoning supernatant, be dried and grind, obtaining described magnetic composite.
Described niobium oxide colloidal solid is Nb2O5Colloidal solid, the mean diameter of niobium oxide colloidal solid is 10nm.Its system Preparation Method is: by Nb2O5It is dissolved in the Fluohydric acid. of 30% by the mass ratio of 1:20, gained solution is joined relative to this solution 2 In the ammonia of times volume, stir 3min, filter, and wash, obtain the slurry of niobium hydroxide, subsequently, successively add 4 times of weight Oxalic acid solution, the mass concentration of described oxalic acid solution is 35%, stirs and refluxes, and promotes the reaction of gained slurry, according to described The color of slurry determines the terminal of reaction, i.e. determine whether to have obtained homogeneous niobium oxide colloidal solid solution, if described Slurry becomes blue, then may determine that this slurry is uniform state.
Described phosphate particle be by phosphorous acid, hypophosphorous acid, organic phosphoric acid, organic phosphorous acid, phosphoric acid, disodium hydrogen phosphate, In sodium dihydrogen phosphate, polyphosphoric acid such as polyphosphoric acid, Metaphosphoric acid, pyrophosphoric acid and their salt any one or two or more appoint Meaning combination, the particle diameter of described phosphate particle is 20 μm.
The preparation method of described modified sawdust is: sawdust powder is broken into 120 mesh granules, adds 3% by weight percentage Sodium silicate, the high-efficiency water-reducing agent of poly-carboxylic acid of 6%, spray into the OPE of 1%, the detergent alkylate sulphur of 1% while stirring Acid sodium solution, 5% acetic acid solution, dispersion grinding 3 hours, it is heated to 75 DEG C, the mixture that will obtain after drying crosses the mesh of 100 mesh Sieve, i.e. obtains described modified sawdust powder.
Described polymer resin is selected from vistanex, polyurethane resin, polyester resin, olefin-acrylic copolymer resin Fat, polycarbonate resin, at least one in acrylic copolymer.
A kind of colloidal particle for chemical wastewater treatment, its preparation method is:
(1) mesopore activated carbon 10 parts, magnetic composite 2 parts, niobium oxide colloidal solid 1 part, phosphoric acid are weighed by described proportioning Salt particle 2 parts, modified 5 parts of sawdust, polymer resin 3 parts, nano-titania photocatalyst 0.6 part, nano silicon dioxide sol 10 Part, standby；
(2) by described mesopore activated carbon, magnetic composite, niobium oxide colloidal solid, phosphate particle, modified sawdust, gather Resin, nano-titania photocatalyst mix, and under the uniform stirring that rotating speed is 100rpm, slowly spray into nano silicon Colloidal sol, then instill 0.8 part of rudimentary alkyd, continuously stirred 1h under room temperature, then it is slowly dropped into TEOS/ ethanol solution (TEOS/ ethanol body Long-pending ratio is 1:1), continuously stirred 1h under room temperature, obtain mixture；
(3) by described mixture ultrasonic disperse, cold drying, described colloidal particle is i.e. obtained.
Embodiment 2:
A kind of colloidal particle for chemical wastewater treatment, by weight, mainly consists of the following composition: mesopore is lived Property charcoal 14 parts, magnetic composite 4 parts, niobium oxide colloidal solid 3 parts, phosphate particle 6 parts, modified 10.5 parts of sawdust, polymerization tree 9 parts of fat, nano-titania photocatalyst 0.9 part, nano silicon dioxide sol 16 parts.
Wherein, the preparation method of described magnetic composite is: by na-pretreated zeolite powder and Fe3O4Powder presses the weight ratio of 1:2.15 It is sufficiently mixed, obtains zeolite-Fe3O4Mixture；Chitosan is dissolved in the phenoxyacetic acid solution that mass concentration is 35% In, the mass ratio of the two is 1.35:10, obtains chitosan-phenoxyacetic acid solution, adds and gathers relative to described chitin The surfactant polyvinylpyrrolidone of sugar-phenoxyacetic acid solution weight percentage ratio 4.5%, add described zeolite- Fe3O4Mixture, stirs；Make system be aged, after abandoning supernatant, be dried and grind, obtaining described magnetic composite.
Described niobium oxide colloidal solid is Nb2O5Colloidal solid, the mean diameter of niobium oxide colloidal solid is 50nm.Its system Preparation Method is: by Nb2O5It is dissolved in the Fluohydric acid. of 30% by the mass ratio of 1:20, gained solution is joined relative to this solution 6 In the ammonia of times volume, stir 6.5min, filter, and wash, obtain the slurry of niobium hydroxide, subsequently, successively add 5 times of weight Oxalic acid solution, the mass concentration of described oxalic acid solution is 35%, stirs and refluxes, promote gained slurry reaction, according to institute State the color of slurry to determine the terminal of reaction, i.e. determine whether to have obtained homogeneous niobium oxide colloidal solid solution, if institute State slurry and become blue, then may determine that this slurry is uniform state.
Described phosphate particle be by phosphorous acid, hypophosphorous acid, organic phosphoric acid, organic phosphorous acid, phosphoric acid, disodium hydrogen phosphate, In sodium dihydrogen phosphate, polyphosphoric acid such as polyphosphoric acid, Metaphosphoric acid, pyrophosphoric acid and their salt any one or two or more appoint Meaning combination, the particle diameter of described phosphate particle is 20 μm.
The preparation method of described modified sawdust is: sawdust powder is broken into 160 mesh granules, adds 4% by weight percentage Sodium silicate, the high-efficiency water-reducing agent of poly-carboxylic acid of 7.5%, spray into the OPE of 2%, the dodecyl of 1.5% while stirring Benzene sulfonic acid sodium salt solution, 7.5% acetic acid solution, dispersion grinding 3.5 hours, it is heated to 77.5 DEG C, the mixture that will obtain after drying Cross the mesh sieve of 150 mesh, i.e. obtain described modified sawdust powder.
Described polymer resin is selected from vistanex, polyurethane resin, polyester resin, olefin-acrylic copolymer resin Fat, polycarbonate resin, at least one in acrylic copolymer.
A kind of colloidal particle for chemical wastewater treatment, its preparation method is:
(1) mesopore activated carbon 14 parts, magnetic composite 4 parts, niobium oxide colloidal solid 3 parts, phosphoric acid are weighed by described proportioning Salt particle 6 parts, modified 10.5 parts of sawdust, polymer resin 9 parts, nano-titania photocatalyst 0.9 part, nano silicon dioxide sol 16 parts, standby；
(2) by described mesopore activated carbon, magnetic composite, niobium oxide colloidal solid, phosphate particle, modified sawdust, gather Resin, nano-titania photocatalyst mix, and under the uniform stirring that rotating speed is 100rpm, slowly spray into nano silicon Colloidal sol, then instill 0.9 part of rudimentary alkyd, continuously stirred 21.5h under room temperature, then it is slowly dropped into TEOS/ ethanol solution (TEOS/ second Alcohol volume ratio is 1:1), under room temperature, continuously stirred 21.5h, obtains mixture；
(3) by described mixture ultrasonic disperse, cold drying, described colloidal particle is i.e. obtained.
Embodiment 3:
A kind of colloidal particle for chemical wastewater treatment, by weight, mainly consists of the following composition: mesopore is lived Property charcoal 18 parts, magnetic composite 6 parts, niobium oxide colloidal solid 5 parts, phosphate particle 10 parts, modified 16 parts of sawdust, polymer resin 15 parts, nano-titania photocatalyst 1.2 parts, nano silicon dioxide sol 22 parts.
Wherein, the preparation method of described magnetic composite is: by na-pretreated zeolite powder and Fe3O4Powder is filled by the weight ratio of 1:2.3 Divide mixing, obtain zeolite-Fe3O4Mixture；Chitosan is dissolved in the phenoxyacetic acid solution that mass concentration is 35%, The mass ratio of the two is 1.5:10, obtains chitosan-phenoxyacetic acid solution, adds relative to described chitosan-benzene The surfactant polyvinylpyrrolidone of ethoxyacetic acid solution weight percentage ratio 6%, adds described zeolite-Fe3O4Mixing Thing, stirs；Make system be aged, after abandoning supernatant, be dried and grind, obtaining described magnetic composite.
Described niobium oxide colloidal solid is Nb2O5Colloidal solid, the mean diameter of niobium oxide colloidal solid is 500nm.Its system Preparation Method is: by Nb2O5It is dissolved in the Fluohydric acid. of 30% by the mass ratio of 1:20, gained solution is joined relative to this solution In the ammonia of 10 times of volumes, stir 10min, filter, and wash, obtain the slurry of niobium hydroxide, subsequently, successively add 6 times of weights The oxalic acid solution of amount, the mass concentration of described oxalic acid solution is 35%, stirs and refluxes, and promotes the reaction of gained slurry, according to The color of described slurry determines the terminal of reaction, i.e. determine whether to have obtained homogeneous niobium oxide colloidal solid solution, if Described slurry becomes blue, then may determine that this slurry is uniform state.
Described phosphate particle be by phosphorous acid, hypophosphorous acid, organic phosphoric acid, organic phosphorous acid, phosphoric acid, disodium hydrogen phosphate, In sodium dihydrogen phosphate, polyphosphoric acid such as polyphosphoric acid, Metaphosphoric acid, pyrophosphoric acid and their salt any one or two or more appoint Meaning combination, the particle diameter of described phosphate particle is 20 μm.
The preparation method of described modified sawdust is: sawdust powder is broken into 200 mesh granules, adds 5% by weight percentage Sodium silicate, the high-efficiency water-reducing agent of poly-carboxylic acid of 9%, spray into the OPE of 3%, the detergent alkylate sulphur of 2% while stirring Acid sodium solution, 12% acetic acid solution, dispersion grinding 4 hours, it is heated to 80 DEG C, the mixture that will obtain after drying crosses 200 purposes Mesh sieve, i.e. obtains described modified sawdust powder.
Described polymer resin is selected from vistanex, polyurethane resin, polyester resin, olefin-acrylic copolymer resin Fat, polycarbonate resin, at least one in acrylic copolymer.
A kind of colloidal particle for chemical wastewater treatment, its preparation method is:
(1) mesopore activated carbon 18 parts, magnetic composite 6 parts, niobium oxide colloidal solid 5 parts, phosphoric acid are weighed by described proportioning Salt particle 10 parts, modified 16 parts of sawdust, polymer resin 15 parts, nano-titania photocatalyst 1.2 parts, nano silicon dioxide sol 22 parts, standby；
(2) by described mesopore activated carbon, magnetic composite, niobium oxide colloidal solid, phosphate particle, modified sawdust, gather Resin, nano-titania photocatalyst mix, and under the uniform stirring that rotating speed is 100rpm, slowly spray into nano silicon Colloidal sol, then instill 1.0 parts of rudimentary alkyd, continuously stirred 24h under room temperature, then it is slowly dropped into TEOS/ ethanol solution (TEOS/ ethanol Volume ratio is 1:1), under room temperature, continuously stirred 24h, obtains mixture；
(3) by described mixture ultrasonic disperse, cold drying, described colloidal particle is i.e. obtained.
It is used for colloidal particle prepared by the embodiment of the present invention 2 processing containing Organic substance, inorganic matter and the change of aldehydes matter Work waste water, result display effluent quality complies fully with " integrated wastewater discharge standard ", and Inlet and outlet water water quality the results are shown in Table 1.
Table 1: Inlet and outlet water water quality table
By referring to exemplary embodiments, invention has been described, it should be appreciated that word wherein used is for describing Property and explanatory vocabulary rather than limited vocabulary.Within the scope of the claims the present invention can be made by regulation Go out amendment, and in without departing substantially from scope and spirit of the present invention, the present invention is revised.Although the present invention described in it Relate to specific method, material and embodiment, it is not intended that the present invention is limited to wherein disclosed particular case, on the contrary, originally Invention can be extended to other all methods and applications with identical function.

Claims (9)

1. the colloidal particle for chemical wastewater treatment, it is characterised in that by weight, mainly by following component group Become: mesopore activated carbon 10-18 part, magnetic composite 2-6 part, niobium oxide colloidal solid 1-5 part, phosphate particle 2-10 part, change Property sawdust 5-16 part, polymer resin 3-15 part, nano-titania photocatalyst 0.6-1.2 part, nano silicon dioxide sol 10-22 Part.
A kind of colloidal particle for chemical wastewater treatment, it is characterised in that described magnetic coupling The preparation method of thing is: by na-pretreated zeolite powder and Fe3O4Powder is by 1:(2-2.3) weight ratio be sufficiently mixed, obtain zeolite-Fe3O4 Mixture；Being dissolved in by chitosan in the phenoxyacetic acid solution that mass concentration is 35%, the mass ratio of the two is (1.2- 1.5): 10, obtain chitosan-phenoxyacetic acid solution, add relative to described chitosan-phenoxyacetic acid solution weight The surfactant polyvinylpyrrolidone of amount percentage ratio 3-6%, adds described zeolite-Fe3O4Mixture, stirs；Make System is aged, and after abandoning supernatant, is dried and grinds, obtaining described magnetic composite.
A kind of colloidal particle for chemical wastewater treatment, it is characterised in that described niobium oxide glue Body granule is Nb2O5Colloidal solid, the mean diameter of niobium oxide colloidal solid is 1000nm or less.
A kind of colloidal particle for chemical wastewater treatment, it is characterised in that its preparation method For: by Nb2O5It is dissolved in the Fluohydric acid. of 30% by the mass ratio of 1:20, gained solution is joined relative to this solution 2-10 times In the ammonia of volume, stir 3-10min, filter, and wash, obtain the slurry of niobium hydroxide, subsequently, successively add 4-6 times and weigh The oxalic acid solution of amount, the mass concentration of described oxalic acid solution is 35%, stirs and refluxes, and promotes the reaction of gained slurry, according to The color of described slurry determines the terminal of reaction, i.e. determine whether to have obtained homogeneous niobium oxide colloidal solid solution, if Described slurry becomes blue, then may determine that this slurry is uniform state.
A kind of colloidal particle for chemical wastewater treatment, it is characterised in that described phosphate grain Son is as many by phosphorous acid, hypophosphorous acid, organic phosphoric acid, organic phosphorous acid, phosphoric acid, disodium hydrogen phosphate, sodium dihydrogen phosphate, polyphosphoric acid Any one or two or more combination in any in phosphoric acid, Metaphosphoric acid, pyrophosphoric acid and their salt.
A kind of colloidal particle for chemical wastewater treatment, it is characterised in that described phosphate grain The particle diameter of son is 20 μm.
A kind of colloidal particle for chemical wastewater treatment, it is characterised in that described modified sawdust Preparation method be: sawdust powder is broken into 120-200 mesh granule, adds the sodium silicate of 3-5%, 6-9% by weight percentage High-efficiency water-reducing agent of poly-carboxylic acid, while stirring spray into the OPE of 1-3%, the dodecylbenzene sodium sulfonate solution of 1-2%, 5-12% acetic acid solution, dispersion grinding 3-4 hour, it is heated to 75-80 DEG C, the mixture that will obtain after drying crosses 100-200 mesh Mesh sieve, i.e. obtain described modified sawdust powder.
A kind of colloidal particle for chemical wastewater treatment, it is characterised in that described polymer resin It is selected from vistanex, polyurethane resin, polyester resin, olefin-propylene acid copolymer resin, polycarbonate resin, poly-third At least one in olefin(e) acid copolymer.
9. a kind of colloidal particle for chemical wastewater treatment as described in claim 1-8, it is characterised in that preparation method For:
(1) mesopore activated carbon 10-18 part, magnetic composite 2-6 part, niobium oxide colloidal solid 1-5 part, phosphorus are weighed by described proportioning Hydrochlorate particle 2-10 part, modified sawdust 5-16 part, polymer resin 3-15 part, nano-titania photocatalyst 0.6-1.2 part, nanometer Silicon dioxide gel 10-22 part is standby；
(2) by described mesopore activated carbon, magnetic composite, niobium oxide colloidal solid, phosphate particle, modified sawdust, polymerization tree Fat, nano-titania photocatalyst mix, and under the uniform stirring that rotating speed is 100rpm, slowly spray into nano silicon molten Glue, then instill the rudimentary alkyd of 0.8-1.0 part, continuously stirred 1-24h under room temperature, then it is slowly dropped into TEOS/ ethanol solution (TEOS/ Ethanol volume ratio is 1:1), under room temperature, continuously stirred 1-24h, obtains mixture；
(3) by described mixture ultrasonic disperse, cold drying, described colloidal particle is i.e. obtained.
CN201610700980.5A 2016-08-19 2016-08-19 A kind of colloidal particle for chemical wastewater treatment Expired - Fee Related CN106219624B (en)

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